Apple has released the second public beta of the upcoming OS X Yosemite, but with no word about what might have changed. If you’re running the first public beta, get the new version from the Updates tab in the App Store app. You can still sign up for the public beta, and regardless, we recommend picking up a copy of Joe Kissell’s name-your-own-price “Take Control of Beta Testing Yosemite,” which provides complete details on preparing for, installing, and testing the Yosemite beta. follow link
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OS X Yosemite Public Beta 2 Out — Get “Take Control of Beta Testing Yosemite” Now
Check out the Take Control ebooks that expand on the topic in this article: